body {
	background-color: #e9e9e9;
}
.card {
	text-align: center;
	box-shadow: 3px 3px 4px #888;
	border-radius: 20px;
	padding: 40px;
	background-color: white;
	/* 激活动效 */
	animation: fade-down 0.5s 0.5s both;
}

.input-field {
	margin: auto;
	display: block;
	width: 300px;
	height: 50px;
	border-radius: 8px;
	border: 1px solid #ccc;
	outline-style: none;
	font-size: 22px;
	font-weight: 500;
	margin-bottom: 30px;
	letter-spacing: 1px;
	text-align: center;
}
